Piggyback dual car charger



FIG. 1 is a side perspective view of a first embodiment of the piggybackdual car charger, showing my design;

FIG. 2 is a left side view;

FIG. 3 is a right side view;

FIG. 4 is a top view;

FIG. 5 is a bottom view;

FIG. 6 is a front view;

FIG. 7 is rear view;

FIG. 8 is a side perspective view of the second embodiment of thepiggyback dual car charger, showing my design;

FIG. 9 is a left side view;

FIG. 10 is a right side view;

FIG. 11 is a top view;

FIG. 12 is a bottom view;

FIG. 13 is a front view; and,

FIG. 14 is rear view.

The ornamental design for a piggyback dual car charger, as shown and described. 